WO1997034772A1 - Produit en cuir gaufre, forme et procede pour le produire - Google Patents

Produit en cuir gaufre, forme et procede pour le produire Download PDF

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Publication number
WO1997034772A1
WO1997034772A1 PCT/FI1997/000179 FI9700179W WO9734772A1 WO 1997034772 A1 WO1997034772 A1 WO 1997034772A1 FI 9700179 W FI9700179 W FI 9700179W WO 9734772 A1 WO9734772 A1 WO 9734772A1
Authority
WO
WIPO (PCT)
Prior art keywords
leather
embossed
layers
mould
high frequency
Prior art date
Application number
PCT/FI1997/000179
Other languages
English (en)
Inventor
Veikko Hakkarainen
Original Assignee
Veikko Hakkarainen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FI960172U external-priority patent/FIU960172U0/fi
Application filed by Veikko Hakkarainen filed Critical Veikko Hakkarainen
Publication of WO1997034772A1 publication Critical patent/WO1997034772A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
    • C14B1/00—Manufacture of leather; Machines or devices therefor
    • C14B1/44—Mechanical treatment of leather surfaces
    • C14B1/56—Ornamenting, producing designs, embossing

Definitions

  • the invention relates to an embossed leather product or piece, a mould therefor and a method to produce the product.
  • Embossed figures are produced e.g. so that elastic filling material is put on material piece forming the base, the base and filling material are covered with a surface layer whereafter heat sealing is carried out using press element having a desired three dimensional picture. It is not always needed the base but other filling material.
  • embossed pattern can also be used in peaked caps e.g. in t e form of logos. It increases the possibility tc be seen by others. Also thus it has been improved remarkably to obtain natural character of the embossed patterns.
  • the embossed patterns can be moved to different places for fixing. It can promote more valuable influence by using new materials.
  • the end product material is obtained in the preferred embodiment to its shape only using one material is as an advantage against the earlier solutions. It is easily to be transferred.
  • the embossed pattern is formed permanently to the leather directly without that it would be necessary to attach behind it a background material in order to form a closed space between the layers.
  • the aim of this invention is to achieve an embossed pattern with which is avoided the afore mentioned restrictions and with which it makes available e.g. remarkable broader implementation possibilities of the letter characters and figures by a simple solution.
  • the aim is achieved by the embossed pattern of the invention which is characterised in that is presented in the claims.
  • Figure 1 presents a photograph of the manufactured product from the above
  • Figure 2 presents a section view in which the leather piece to be embossed is Dut between the moulds and the material layers to be used in the embossing process in a state before pressing, and
  • Figure 2 presents the manufactured leather product as a section view.
  • Fig. I the embossed leather product 10 is shown.
  • the printing element or base (plate) can change.
  • the desired embossed picture to the folder and cover is manufactured so that preferably a layer 7 of plastics of closed cells being impervious to air, having thickness of approximately 1 to 1.5 mm is put on the base of the high frequency sealing device or heat sealing apparatus.
  • the plastics layers with open cells can be- set on the places corresponding engravings formed in the mould or pressing plate. Then the plastics layers with open cells fill the engraved places, usually stay on the whole area of the figure and usually also melt at least partly when plate is pressec .
  • a satin layer 13 which is slippery is put above these layers.
  • the desired leather piece comes against the satin layer of the above mentioned "counter mould material” formed from different materials in order to build a relief figure by means of heat and high frequency.
  • the mould having the desired engravings is put against the leather piece when using high frequency sealing.
  • this mould becomes ⁇ ite hard at least from those places where the engravings are as the deepest. The reason for this is probably that compression is obtained also to the deepest places (the grooves) of the mould.
  • the invention is applied e.g. to profile depths of 0.1 to 10 mm.
  • PVC based plastics are used in sealing of plastics.
  • the outer layers are connected to each other from the unengraved parts of the mould of the embossed picture in which parts the depth of the elastic layer is the lowest.
  • the plastics with open cells left therebetween is melt to each other by the outer layers in the unengraved parts, and in other places the elastic layer supports the pattern to be formed on the desired surface of the embossed picture.
  • the embossed pattern is formed and transferred as a part of a folder e.g. so that it will glued or sewn to the edges of the folder.
  • the size of the folder usually defines the size of the embossed pattern or it cannot be larger than folder page.
  • the leather piece of Fig.3 which from one part of its surface is embosse ⁇ by means of high frequency and neatmg, includes an outer surface 1, which usually is left as a v sicle surface, and inner surface 2, which m tne end product s left non-visible.
  • the pattern formed in the leather comprises a compressed part 3 which surrounds the part 4 to oe raised and m wnicn the surfaces 1, 2 have been pressed closer to each other in order to form the background of the pattern, against which tne desired pattern/s is/are moulded the measure defined by the engravings of the mould.
  • the desired height of the pattern 4 raises from the background.
  • the obtained embossed pattern comprises at least a figure at least a part of which is higher than the height of the area leaving outside of the mould.
  • the embossed leather piece can be transferred to the folder or as a part of the cover of the folder.
  • the leather is heated firstly a couple of seconds before sealing with high frequency approximately in 60 to 80 degrees in Celsius.
  • the high frequency is on approximately for 20 to 50 s.
  • the times and temperatures vary depending on leather quality, weight, size etc.
  • the leather piece is an usual leather quality used as furniture material or the like. Satin or the like material prevents that the leather grips to the mould material and/or makes possible the detaching from the leather.
  • the counter mould, -plate is due to the material partly elastic and partly also hard in order to create favourable conditions to stretch the leather. Thus a relief pattern can be obtained corresponding from its smallest details the mould.
  • the press element is an engraved plate.
  • Wax cloth is usually a plastics product naving a cloth based background, compare e.g. desk cover.
  • the invention is made especially interesting so that the counter mould can be used many times and tnat the leather keeps the forme ⁇ relief snape cf leather and does not return.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Abstract

Procédé de fabrication d'un produit en cuir gaufré selon lequel on scelle à haute fréquence une pièce de cuir donnée à former au moins sur une partie de sa surface, ladite pièce étant placée entre la base de l'appareil et un élément de presse ayant des gravures de la forme voulue. Le cuir est réchauffé avant le scellement à haute fréquence qui consiste à sceller à haute fréquence la pièce de cuir par compression d'un élément de presse et de la base. Ladite pièce de cuir présente une surface externe (1) qui reste normalement visible et une surface interne (2) qui n'est pas visible dans le produit fini. Les parties entourant le motif formable et les rainures de l'élément de presse sont comprimées sur le cuir par l'intermédiaire d'un moule n'accrochant pas au cuir, à placer entre la base et le cuir. Ledit moule contient de nombreuses couches de différentes matières pouvant être formées à la chaleur et aux hautes fréquences par rapport à la forme de l'élément de presse.
PCT/FI1997/000179 1996-03-19 1997-03-19 Produit en cuir gaufre, forme et procede pour le produire WO1997034772A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FIU960172 1996-03-19
FI960172U FIU960172U0 (fi) 1996-03-19 1996-03-19 Kohokuvioitu nahkatuote
FI962088A FI962088A (fi) 1996-03-19 1996-05-17 Kohokuvioitu nahkatuote, muotti ja menetelmä tuotteen valmistamiseksi
FI962088 1996-05-17

Publications (1)

Publication Number Publication Date
WO1997034772A1 true WO1997034772A1 (fr) 1997-09-25

Family

ID=26160080

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1997/000179 WO1997034772A1 (fr) 1996-03-19 1997-03-19 Produit en cuir gaufre, forme et procede pour le produire

Country Status (2)

Country Link
FI (1) FI962088A (fr)
WO (1) WO1997034772A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201600122337A1 (it) * 2016-12-01 2018-06-01 Irene Cascini Metodo di lavorazione della pelle, del cuoio, di tessuti vegetali o sintetici e similari per la realizzazione di articoli di pelletteria
WO2019229482A1 (fr) * 2018-05-28 2019-12-05 Bozic Miroslav Procédé de modification de surface de textile, de cuir artificiel ou de cuir fabriqué

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE128317C (fr) * 1900-01-01
DE2144371A1 (de) * 1971-09-04 1973-03-29 Benecke Gmbh J Verfahren zur praegekaschierung von leder in einem hf-feld
GB1491532A (en) * 1974-03-13 1977-11-09 Mashida T Process for preparing straps
EP0256803A2 (fr) * 1986-08-07 1988-02-24 Praxair S.T. Technology, Inc. Outils d'emboutissage, leur fabrication et leur emploi
EP0654536A1 (fr) * 1993-11-24 1995-05-24 Dacremen S.L. Machine pour graver des reliefs sur la surface de peaux en général

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE128317C (fr) * 1900-01-01
DE2144371A1 (de) * 1971-09-04 1973-03-29 Benecke Gmbh J Verfahren zur praegekaschierung von leder in einem hf-feld
GB1491532A (en) * 1974-03-13 1977-11-09 Mashida T Process for preparing straps
EP0256803A2 (fr) * 1986-08-07 1988-02-24 Praxair S.T. Technology, Inc. Outils d'emboutissage, leur fabrication et leur emploi
EP0654536A1 (fr) * 1993-11-24 1995-05-24 Dacremen S.L. Machine pour graver des reliefs sur la surface de peaux en général

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201600122337A1 (it) * 2016-12-01 2018-06-01 Irene Cascini Metodo di lavorazione della pelle, del cuoio, di tessuti vegetali o sintetici e similari per la realizzazione di articoli di pelletteria
WO2019229482A1 (fr) * 2018-05-28 2019-12-05 Bozic Miroslav Procédé de modification de surface de textile, de cuir artificiel ou de cuir fabriqué

Also Published As

Publication number Publication date
FI962088A0 (fi) 1996-05-17
FI962088A (fi) 1997-08-02

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